Emerging single-phase state in small manganite nanodisks

Shao, Jian; Liu, Hao; Zhang, Kai; Yu, Yang; Yu, Weichao; Lin, Hanxuan; Niu, Jiebin; Du, Kai; Kou, Yunfang; Wei, Wengang; Lan, Fanli; Zhu, Yinyan; Wang, Wenbin; Xiao, Jiang; Yin, Lifeng; Plummer, E. W.; Shen, Jian

doi:10.1073/pnas.1609656113

Title: Emerging single-phase state in small manganite nanodisks

Journal Article · Mon Aug 01 00:00:00 EDT 2016 · Proceedings of the National Academy of Sciences of the United States of America

DOI:https://doi.org/10.1073/pnas.1609656113· OSTI ID:1436494

Shao, Jian ^[1]; Liu, Hao ^[1]; Zhang, Kai ^[1]; Yu, Yang ^[1]; Yu, Weichao ^[1]; Lin, Hanxuan ^[1]; Niu, Jiebin ^[1]; Du, Kai ^[1]; Kou, Yunfang ^[1]; Wei, Wengang ^[1]; Lan, Fanli ^[1]; Zhu, Yinyan ^[1]; Wang, Wenbin ^[1]; Xiao, Jiang ^[1]; Yin, Lifeng ^[2]; Plummer, E. W. ^[3]; Shen, Jian ^[2]

Fudan Univ., Shanghai (China)
Fudan Univ., Shanghai (China); Collaborative Innovation Center of Advanced Microstructures, Nanjing (China)
Louisiana State Univ., Baton Rouge, LA (United States)

In complex oxides systems such as manganites, electronic phase separation (EPS), a consequence of strong electronic correlations, dictates the exotic electrical and magnetic properties of these materials. A fundamental yet unresolved issue is how EPS responds to spatial confinement; will EPS just scale with size of an object, or will the one of the phases be pinned? Understanding this behavior is critical for future oxides electronics and spintronics because scaling down of the system is unavoidable for these applications. In this work, we use La_0.325Pr_0.3Ca_0.375MnO₃ (LPCMO) single crystalline disks to study the effect of spatial confinement on EPS. The EPS state featuring coexistence of ferromagnetic metallic and charge order insulating phases appears to be the low-temperature ground state in bulk, thin films, and large disks, a previously unidentified ground state (i.e., a single ferromagnetic phase state emerges in smaller disks). The critical size is between 500 nm and 800 nm, which is similar to the characteristic length scale of EPS in the LPCMO system. The ability to create a pure ferromagnetic phase in manganite nanodisks is highly desirable for spintronic applications.

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Research Organization:: Louisiana State Univ., Baton Rouge, LA (United States)

Sponsoring Organization:: USDOE

Grant/Contract Number:: SC0002136

OSTI ID:: 1436494

Journal Information:: Proceedings of the National Academy of Sciences of the United States of America, Vol. 113, Issue 33; ISSN 0027-8424

Publisher:: National Academy of Sciences, Washington, DC (United States)Copyright Statement

Country of Publication:: United States

Language:: English

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Cited by: 17 works

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Versatile Molten Salt Synthesis of Manganite Perovskite Oxide Nanocrystals and Their Magnetic Properties Gonell, Francisco; Alem, Naoual; Dunne, Peter ChemNanoMat, Vol. 5, Issue 3 https://doi.org/10.1002/cnma.201800632	journal	January 2019
Huge magnetoresistance and ultrasharp metamagnetic transition in polycrystalline Sm0.5Ca0.25Sr0.25MnO3 Banik, Sanjib; Das, Kalipada; Paramanik, Tapas NPG Asia Materials, Vol. 10, Issue 9 https://doi.org/10.1038/s41427-018-0085-7	journal	September 2018
Emerging ferromagnetic phase in self-assembled mixed valence manganite nanowires Malik, Iftikhar Ahmed; Wang, Xueyun; Ma, Ji Applied Physics Letters, Vol. 115, Issue 16 https://doi.org/10.1063/1.5125578	journal	October 2019
Non-Ohmic conduction in exfoliated La _0.7 Ca _0.3 MnO ₃ thin films Park, Jungsik; Shin, Jae Hoon; Song, Kyung Applied Physics Letters, Vol. 116, Issue 2 https://doi.org/10.1063/1.5127355	journal	January 2020
Magnetization reversal and confinement effects across the metamagnetic phase transition in mesoscale FeRh structures Arregi, Jon Ander; Horký, Michal; Fabianová, Kateřina Journal of Physics D: Applied Physics, Vol. 51, Issue 10 https://doi.org/10.1088/1361-6463/aaaa5a	journal	February 2018
Enhanced magnetocaloric effect in manganite nanodisks Wang, Yanmei; Shao, Jian; Yu, Yang Physical Review Materials, Vol. 3, Issue 8 https://doi.org/10.1103/physrevmaterials.3.084411	journal	August 2019
Research Progress in Rare Earth-Doped Perovskite Manganite Oxide Nanostructures Xia, Weiren; Pei, Zhipeng; Leng, Kai Nanoscale Research Letters, Vol. 15, Issue 1 https://doi.org/10.1186/s11671-019-3243-0	journal	January 2020
Huge magnetoresistance and ultra-sharp metamagnetic transition in polycrystalline ${Sm_{0.5}Ca_{0.25}Sr_{0.25}MnO_3}$ Banik, Sanjib; Das, Kalipada; Paramanik, Tapas arXiv https://doi.org/10.48550/arxiv.1710.03007	preprint	January 2017

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